Home / 808,122.07-1,212,189.16-358,722.12

Finding the Fourth Proportional to 808,122.07, 1,212,189.16 and 358,722.12

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Solution

The fourth proportional to 808,122.07, 1,212,189.16 and 358,722.12 is: 538,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,122.07 : 1,212,189.16 = 358,722.12 : x
  2. Step 2: Convert to fraction form
    808,122.07/1,212,189.16 = 358,722.12/x
  3. Step 3: Cross multiply
    808,122.07x = 1,212,189.16 × 358,722.12
  4. Step 4: Simplify right side
    808,122.07x = 434,839,064,419.41
  5. Step 5: Solve for x
    x = 434,839,064,419.41/808,122.07
  6. Step 6: Final answer
    x = 538,085.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.